Any person who submits a freely available membership application, supports the purposes laid out in Article I of these bylaws, and meets the requirements of the Baltimore Node Membership Rules, Guidelines, & Policies, is qualified to become a member. Any qualified person may become a member at any regular meeting by an affirmative vote of more than three quarters (3/4ths) of voting power present. A vote to affirm a qualified person as a member may only occur if the qualified person is present for the vote. Existing members should consider the qualified person's commitment to the corporations purposes, trustworthiness and any relevant risks before affirming a qualified person with their vote. If a member is unable to assess these considerations, they should make an effort to get the know the qualified person so they can make a proper assessment.
The whole process is outlined here: http://wiki.baltimorenode.org/index.php?title=Membership_Process